Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 12939 2071 16% 0.00 2699 1446 54% 5.5
10 Kinds of People 28614 5812 20% 0.01 4978 3540 71% 5.2
2048 11632 5276 45% 0.00 5128 4357 85% 2.5
2, 4, 6, Greaaat 1052 166 16% 0.15 124 54 44% 8.4
3D Printed Statues 15808 7274 46% 0.00 6864 6131 89% 2.1
3D Printer 1083 173 16% 0.00 468 132 28% 8.9
3-Sided Dice 2995 244 8% 0.00 500 172 34% 8.7
4 thought 13580 4695 35% 0.00 4477 3777 84% 2.9
A1 Paper 7209 2222 31% 0.00 2208 1768 80% 3.4
Aa 204 134 66% 0.01 61 38 62% 6.0 - 8.3
Aaah! 38972 18269 47% 0.00 16527 15409 93% 1.7
Abandoned Animal 2783 623 22% 0.03 716 521 73% 5.6
ABC 22214 10084 45% 0.00 9617 8720 91% 1.7
Ab Initio 2347 380 16% 0.08 329 207 63% 7.5
Above Average 14727 6112 42% 0.00 5900 5293 90% 2.1
A+B Problem 10555 1017 10% 0.03 1482 485 33% 8.5
A Brief Gerrymander 577 115 20% 0.11 107 53 50% 8.8
Abstract Art 473 156 33% 0.00 133 96 72% 7.1
Abstract Painting 1256 485 39% 0.00 437 348 80% 4.4
Absurdistan Roads II 720 241 33% 0.00 245 161 66% 6.9
Absurdistan Roads III 1901 544 29% 0.02 508 386 76% 5.7
Access Denied 529 119 22% 0.01 107 99 93% 3.3
Access Points 550 185 34% 0.01 178 137 77% 5.9
Accounting 2904 834 29% 0.01 689 500 73% 3.9
A Classy Problem 13611 3595 26% 0.01 3141 2462 78% 3.9
ACM Contest Scoring 9158 5684 62% 0.00 5085 4808 95% 1.5
Add 'Em Up! 2990 695 23% 0.01 733 514 70% 5.3
Adding Words 15942 3975 25% 0.00 3672 2895 79% 3.3
Add Two Numbers 7678 4898 64% 0.00 4516 4322 96% 1.4
A Different List Game 7733 546 7% 0.00 1032 197 19% 9.3
A Different Problem 43952 16231 37% 0.00 14873 12876 87% 2.4
Adjoin the Networks 2858 724 25% 0.00 629 499 79% 5.9
Administrative Difficulties 1939 421 22% 0.02 400 277 69% 6.1
Ads 997 134 13% 0.00 202 91 45% 4.9
Advanced Causal Measurements 129 41 32% 0.10 42 32 76% 7.5
Adventure Begins 374 119 32% 0.06 116 88 76% 6.8
Adventures in Moving -- Part IV 1851 408 22% 0.00 357 290 81% 5.1
A Favourable Ending 2245 597 27% 0.00 560 431 77% 4.7
A Feast For Cats 3927 1461 37% 0.00 1078 931 86% 3.3
A Flea on a Chessboard 1049 219 21% 0.01 218 154 71% 5.4
A Horse Shoe-In 186 15 8% 0.27 24 10 42% 9.2
AI Jeopardy 621 81 13% 0.02 82 53 65% 6.8
Air Conditioned Minions 8003 2373 30% 0.00 2361 1837 78% 3.5
Airline Hub 2450 539 22% 0.01 485 288 59% 6.8
Airport Coffee 1441 286 20% 0.04 271 186 69% 7.1
Airport Construction 3857 481 12% 0.02 426 225 53% 7.9
Airport Logistics 72 20 28% 0.00 26 19 73% 7.5
Airports 698 217 31% 0.11 189 141 75% 5.5
Air Rally 90 0 0% -- 14 0 0% 8.9
Akcija 12367 5454 44% 0.00 4653 4157 89% 2.1
Aladin 885 104 12% 0.10 146 33 23% 8.9
Alchemy 176 34 19% 0.02 46 24 52% 9.1
Alchemy 101 892 277 31% 0.05 216 175 81% 3.9
Alea iacta est 45 16 36% 0.19 20 15 75% 6.6
Alehouse 1165 445 38% 0.02 421 304 72% 5.2
Alex and Barb 1440 522 36% 0.00 598 474 79% 3.2
Alice in the Digital World 6391 1667 26% 0.01 1513 1205 80% 3.8
Alien Codebreaking 332 33 10% 0.59 61 18 30% 8.0
Alien Integers 1015 209 21% 0.00 289 202 70% 5.6
Alien Microwave 267 104 39% 0.00 139 99 71% 7.0
Alien Numbers 3157 1698 54% 0.00 1664 1530 92% 1.8
A List Game 11981 3612 30% 0.00 3475 2956 85% 2.6
All about that base 3492 1394 40% 0.00 1347 1145 85% 2.9
All Different Directions 1826 870 48% 0.00 828 746 90% 2.4
Allergy Test 669 174 26% 0.00 219 111 51% 8.0
All Friends 1205 226 19% 0.00 216 115 53% 8.7
All in the Family 189 40 21% 0.00 59 38 64% 6.0
All is Well 154 39 25% 0.03 38 32 84% 5.9
All Just A Dream 3120 871 28% 0.05 608 471 77% 5.1
All Kill 126 103 82% 0.00 58 51 88% 3.6
Alloys 1012 359 35% 0.00 374 311 83% 3.8
All Pairs Shortest Path 14594 2803 19% 0.00 1794 1293 72% 5.5
Almost Perfect 14426 3283 23% 0.00 3299 2632 80% 3.2
Almost Union-Find 10745 1885 18% 0.02 1697 1045 62% 6.0
Alphabet 2970 1518 51% 0.00 1459 1236 85% 3.0
Alphabet Animals 10441 1808 17% 0.00 1517 1053 69% 6.4
Alphabet Spam 11875 7426 63% 0.00 6314 6071 96% 1.4
Alternating Current 716 697 97% 0.00 125 121 97% 1.4 - 8.3
Alternative Anagram 273 86 32% 0.00 79 56 71% 7.4
Alternative Bracket Notation 240 104 43% 0.00 112 92 82% 5.4
Alto Singing 96 42 44% 0.00 43 40 93% 4.4
Altruistic Amphibians 574 159 28% 0.22 134 100 75% 5.1
Amalgamated Artichokes 5427 2444 45% 0.01 2158 1910 89% 2.6
Amanda Lounges 2053 605 29% 0.03 521 422 81% 5.6
A Mazing! 4100 1061 26% 0.09 422 313 74% 5.6
Amazing Adventures 542 149 27% 0.02 173 121 70% 6.7
Amazing Race 742 184 25% 0.29 161 124 77% 5.6
Ambiguous Result 301 70 23% 0.02 102 65 64% 7.1
Amsterdam Distance 2457 1238 50% 0.00 1254 1080 86% 2.6
A Multiplication Game 1452 610 42% 0.00 651 512 79% 3.9
Anagram Counting 5006 2004 40% 0.00 1948 1637 84% 3.1
AND Permutation 100 19 19% 0.22 28 14 50% 7.6
Andrew the Ant 573 179 31% 0.01 179 138 77% 5.1
A New Adventure 1558 237 15% 0.00 233 167 72% 6.2
A New Alphabet 14973 6837 46% 0.00 6369 5872 92% 1.7
An I for an Eye 1439 433 30% 0.00 501 375 75% 4.7
Animal Classification 1737 403 23% 0.03 346 230 66% 7.0
An Industrial Spy 2574 1363 53% 0.02 1097 964 88% 2.9
Annoyed Coworkers 1493 438 29% 0.02 292 254 87% 3.4
Another Brick in the Wall 4808 2440 51% 0.00 2384 2168 91% 2.0